Water-motor.



No. 787,191. PATENTED APR. 11, 1905.

W. W. KREWSON. WATER MOTOR.

APPLICATION FILED JULY 9,1904.

2 SHEETSSHBET 1.

PATENTED APR. 11, 1905.

W. W. KREWSON.

WATER MOTOR.

APPLICATION FILED JULY 9,1904.

2 SHEETS-SHEET 2.

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UNTTED STATES Patented April 11, 1905.

PATENT UFFICEQ WATER-MOTOR.

SPECIFICATION forming part of Letters Patent No. 787,1 1, dated April11, 1905.

Application filed ly 9, 1904. Serial No. 215,964.

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Be it known that l, \VILLIAM \Y. Knnwsox, a citizen of the UnitedStates, residing at Lambertville. in the county of l'lunterdon, State ofNew Jersey, have invented certain new and useful Improvements in\\"ater-i\l(' t0rs: and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to motors, and more particularly to water-motors,and has for its object to provide a mechanism of this nature the partsof which will be arranged in compact form and in which the usualfly-wheel will be eliminated.

A further object is to provide a construction in which the pipes will beprevented from freezing.

Other objects and advantages will be apparent from the t'ollowingdescription, and it will be understood that modilications of thespecific construction shown may be made and any suitable materials andproportions may be used without departing from the spirit of theinvention.

In the drawings forming a portion of this specification, and in whichlike numerals of reference indicate similar parts in the several views,Figure 1 is a side elevation of the motor. Fig. 2 is a longitudinalsection of Fig. 1 Fig. 3 is a top plan view of the working parts.

Referring now to the drawings, the present invention comprises a hollowwater-tight casing 5. including side walls 6 and T, end walls s and 9,top ll), and bottom 11, and communicating with the interior of thecasing through the top 10 is a water-supply pipe 12.

Disposed within the casing and spaced from the ends and top thereof is abody 13, having a cylindrical passage 11 formed therethrough, in whichthere is slidably disposed a piston 15, which is secured to a piston-rod113, which extends outwardly of the casing through a stul'iing-box 1T inthe wall 9. Secured t0 the ends of the body 13, at the upper edgesthereof, are plates 18, which extend upwardly in an are throughsubstantially half the distance between the ends of the body 13 and theend walls of the casing, and these plates are provided with openings 1%)thcrethrough, in which are disposed the ends of pipes 20, which extendtoward the center of the casing and are connected with a pipe 21, whichextends upwardly for a considerable distance within the pipe 12 and hasits upper end 21 turned and passed outwardly through an opening 22 inthe pipe 12.

The ends of the plates 18 rest against the inner faces of the walls (5and T and form a tight union therewith, and disposed below the plates 18are transverse shafts 23, which are journalcd in bearings 24 and 25 atthe sides of the casing, the bearings 21 being in the form ofstulling-boxes, through which the shafts extend outwardly of the casinSecured at their points to the shafts are V- shaped members 26, whichlie parallel to each other, and secured to the outer ends of theseV-shaped members are arc-shape plates 27, which have their convex facesdirected outwardly and which are arranged to lie at times against theunder faces of the plates 18 to close the openings 1%) thereof and attimes to form continuations of these plates and lie with their outeredges 28 against the inner faces of the walls Sand 9 to close the spacesbetween these walls and the outer edges of the plates 18. \Vhcn in thisposition, the inner edge port-ions 28 of the plates 2? lie against theunder faces of the outer edge portions of the plates 18, and the plates27 are provided with packing-strips 29 to prevent the leakage of waterbetween the two plates.

Secured to the outer ends of the shafts are parallel cranks 30, andthese cranks are pivotally connected to the ends of a pitman 31, therelative positions of the plates 27 being such that when one of theseplates lying against the under face of its corresponding plate 18 theremaining plate 27 forms a continuation of the remaining plate 18 andlies in position to close thespace between the outer edges of this plateand the adjacent end wall of the casing.

Slidably disposed upon the pitman 31 is a block 32, which is connected,by means of angular arm 33, to the outer end of the pistonrod 16, anddisposed between the block 32 ISO and the cranks 30 and surrounding thepitman 31 are helical springs 34 and 35.

Pivoted adjacent to the cranks 30 are latches 36, having notches 37 intheir lower edges, these edges being beveled upwardly at the free endsof the latches, as shown at 38. Each of the cranks 30 carries a lug 39,which when the adjacent plate 27 lies in position to close the spacebetween its corresponding plate 18 and end wall of the casing lies inengagement with the notch 37 of the adjacent latch 36. At this time theremaining plate 27 lies beneath the remaining plate 18, and if water ispermitted to pass through the supply-pipe 12 it will pass between thisplate 18 and the adjacent end wall of the casing and will move thepiston 15 within the passage 14.

At the same time the block 32 will be moved along the pitman 31 and willcompress one of the helical springs until the upper end of the blockcomes into engagement with the bevel edge 38 of the latch 36, which isinengagement with the lug 39, and will disengage this latch from the lug,which will permit of movement of the pitman under the tension of thecompressed spring to reverse the positions of the plates 27, when themovement of the piston will be reversed, as will be readily understood.

The pipes 20 and 21 act as exhaust-passages, and as the piston is movedwithin the passage 14 the water lying in the direction of its movementis forced outwardly through these pipes.

By reason of the fact that the pipe 21 is disposed within the pipe 12 itis prevented from freezing in cold weather, the large volume of waterwithin the pipe 12 protecting it sufficiently from the cold, and it willbe understood that the pipe 12 is of such a size that the watertherewithin would freeze only in the coldest weather.

hat is claimed is- 1. A fluid motor comprising a casing, a fluid-supplypipe communicating with the easing, a body disposed within the casingand spaced from the top and ends thereof and having a cylindricalopening therethrough, plates secured to the ends of the body andextending toward the ends of the casing, valves arranged for movement toclose and open the spaces between the free edges of the plates and theends of the casing, a piston slidably disposed within the cylindricalopening, means connected with the piston for moving the valvesalternately into operative and inoperative position when the piston isreciprocated, and exhaust-pipes communicating with the opposite ends ofthe cylindrical opening.

2. A fluid-motor comprising a casing, a body disposed within the casingand spaced from the top and ends thereof and having a cylindricalopening therethrough communicating at its ends with the spaces betweenthe body and the ends of the casing, plates secured to the body andextending toward the ends of the casing and spaced therefrom, valvesdisposed for movement to close and open the spaces between the platesand the ends of the casing, said valves being arranged to lie one inoperative position when the other is in inoperative position, a pistonslidably disposed within the cylindrical opening, connections betweenthe piston and the valves for operation of the latter when the former isreciprocated, and a fluid-supply pipe communicating with the upperportion of the casing between the valves.

3. A fluid-motor comprising a casing, a body disposed within the casingand spaced from the top and ends thereof and having a cylindricalopening therethrough, valves disposed at opposite ends of the body andarranged for movement to close and open the communication of the spacesbetween the body and the ends of the casing with that above the body,parallel cranks connected with the valves for movement in an arc to movethe valves into operative and inoperative positions, a pitman pivoted atits ends to the cranks, a block slidably disposed upon the pitman, apiston slidably disposed within the cylindrical opening, springsdisposed upon the pitman between the block and the cranks,

means for holding the valves against movement, connections between thepiston and the block for reciprocating the latter upon the pitman tocompress the springs alternately, said block being arranged forengagement of the holding means to move the latter into inoperativeposition to permit of movement of the pitman under the action of thecompressed spring to reverse the positions of the valves, andexhaust-pipes communicating with the opposite ends of the cylindricalopening.

In testimony whereof I afiiX my signature in presence of two witnesses.

WILLIAM 1V. KREYVSON. Witnesses:

O. (J. HoLeoMBE, H. C. BARKLEY.

